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1// SPDX-License-Identifier: GPL-2.02#include <linux/cpufreq.h>3#include <linux/fs.h>4#include <linux/init.h>5#include <linux/proc_fs.h>6#include <linux/seq_file.h>7 8extern const struct seq_operations cpuinfo_op;9 10static int cpuinfo_open(struct inode *inode, struct file *file)11{12 return seq_open(file, &cpuinfo_op);13}14 15static const struct proc_ops cpuinfo_proc_ops = {16 .proc_flags = PROC_ENTRY_PERMANENT,17 .proc_open = cpuinfo_open,18 .proc_read_iter = seq_read_iter,19 .proc_lseek = seq_lseek,20 .proc_release = seq_release,21};22 23static int __init proc_cpuinfo_init(void)24{25 proc_create("cpuinfo", 0, NULL, &cpuinfo_proc_ops);26 return 0;27}28fs_initcall(proc_cpuinfo_init);29